Height adjusting structure for pipe gallery trolley construction

Abstract

The utility model relates to the field of pipe gallery construction equipment, in particular to a height adjusting structure for pipe gallery trolley construction, which is used for realizing the construction efficiency of an underground comprehensive pipe gallery hydraulic formwork trolley in an occasion with a larger sinking section or a larger construction longitudinal slope through a height-adjustable suspension plate, and comprises a T-shaped suspension steel structure and a U-shaped base steel structure, the bottom of the suspension steel structure is connected with the top of the base steel structure through a bearing inhaul cable, the two sides of the suspension steel structure are connected with the two sides of the base steel structure through limiting inhaul cables respectively, and the suspension steel structure comprises at least three pulley blocks. The bottoms of the limiting inhaul cables on the two sides of the suspension steel structure are wound around the second pulley block and the third pulley block correspondingly, and the pulley blocks are both connected with a motor. The utility model is especially suitable for the trolley construction occasion with a sinking section or a large construction longitudinal slope.

Description

Technical Field

[0001] The utility model relates to the field of pipe gallery construction equipment, in particular to a height adjustment structure for a pipe gallery trolley construction. Background Art

[0002] The construction of integrated pipe corridors is an inevitable trend in my country's urbanization process and an important guarantee for the sustainable development of cities. In order to adapt to the environment of increasing labor costs, higher energy conservation and environmental protection requirements, and the transformation of the construction industry to industrialization, the technology of using trolleys to build urban integrated pipe corridors has emerged. At present, the hydraulic formwork trolleys of urban underground integrated pipe corridors have high efficiency in straight sections, but the construction is restricted in the overall sinking of the pipe corridor, the feeding port, the monitoring room, etc., and cannot be applied to complex environments with many sinking sections and large construction longitudinal slopes. There are also problems such as low mechanization, limited scope of application, and low comprehensive utilization efficiency.

[0003] The suspension board is an existing structure, and the core of its structure is the suspension steel structure and the base steel structure. However, the suspension steel structure and the base steel structure are not directly connected, but are supported and limited by load-bearing cables and limit cables on both sides, thereby achieving stability between the suspension steel structure and the base steel structure. However, the existing suspension board cannot achieve height adjustment, so it cannot be directly applied to the height adjustment scenario in this solution. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a height adjustment structure for a pipeline corridor trolley construction, which realizes the construction efficiency of the hydraulic template trolley of an underground comprehensive pipeline corridor in a sinking section or in occasions with a large longitudinal slope through a height-adjustable suspension plate.

[0005] The utility model solves the technical problem by adopting the following technical scheme: a height adjustment structure for pipe gallery trolley construction, comprising a T-shaped suspended steel structure and a U-shaped base steel structure, wherein the bottom of the suspended steel structure is connected to the top of the base steel structure by a load-bearing cable, and the two sides of the suspended steel structure are respectively connected to the two sides of the base steel structure by limiting cables, and comprises at least three groups of pulley blocks, wherein the top of the load-bearing cable is wound around the pulley block of the first group, and the bottoms of the limiting cables on the two sides of the suspended steel structure are respectively wound around the pulley block of the second group and the pulley block of the third group, and the pulley blocks are all connected to a motor; when the suspended steel structure needs to move upward, the pulley block of the first group rotates and shortens the length of the load-bearing cable, and the pulley block of the second group and the pulley block of the third group rotate and extend the length of the limiting cables on the two sides of the suspended steel structure; when the suspended steel structure needs to move downward, the pulley block of the first group rotates and extends the length of the load-bearing cable, and the pulley block of the second group and the pulley block of the third group rotate and shorten the length of the limiting cables on the two sides of the suspended steel structure.

[0006] Furthermore, an operation control system is included, and the operation control system is connected to the motor.

[0007] Furthermore, lock buckles are respectively provided on both sides of the suspended steel structure, one end of the limiting cable is connected to the suspended steel structure through the lock buckle, and the lock buckle and the suspended steel structure are detachably connected.

[0008] Furthermore, the lock buckles are arranged on both sides of the suspended steel structure by fastening screws.

[0009] Furthermore, a universal wheel is arranged at the bottom of the base steel structure, and both ends of the rotating shaft of the universal wheel are arranged at the bottom of the base steel structure.

[0010] Furthermore, it comprises a locking device for locking the universal wheel, and the locking device is fixedly arranged on the base steel structure.

[0011] Furthermore, the locking device is arranged close to the universal wheel.

[0012] The beneficial effect of the utility model is that in actual use, when it is necessary to adjust the height of the T-shaped suspended steel structure, the height adjustment is achieved by adjusting the length of the load-bearing cable and the limit cable. Specifically, when the suspended steel structure needs to move upward, the pulley block of the first group rotates and shortens the length of the load-bearing cable, and the pulley block of the second group and the pulley block of the third group rotate and extend the length of the limit cables on both sides of the suspended steel structure; when the suspended steel structure needs to move downward, the pulley block of the first group rotates and extends the length of the load-bearing cable, and the pulley block of the second group and the pulley block of the third group rotate and shorten the length of the limit cables on both sides of the suspended steel structure. This structure allows the suspended plate to be adjustable in height, and at the same time utilizes the advantages of the strong bearing capacity of the suspended plate and the stable adjustment process, and well realizes the adjustment of the support height below the top template during the trolley construction process. The utility model is particularly suitable for trolley construction occasions with sinking sections or large longitudinal slopes. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of an embodiment of the utility model.

[0014] Figure 2 yes Figure 1 The embodiment of the present invention is a schematic structural diagram for trolley construction.

[0015] Marked in the figure are: suspended steel structure 1, lock 11, base steel structure 2, limit cable 3, pulley block 4, load-bearing cable 41, universal wheel 5, locking device 6, motor and operation control system 7, top template longitudinal and transverse support rods 8, slope 81. DETAILED DESCRIPTION

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0017] like Figure 1 The height adjustment structure for the construction of the pipe gallery trolley is shown, which mainly includes a T-shaped suspended steel structure 1 and a U-shaped base steel structure 2. It is called "suspended" because the suspended steel structure 1 and the base steel structure 2 are connected by flexible steel wire cables and the stability of the connection structure is achieved. The suspended structure is an existing structure, but once the existing suspended structure is made, its height cannot be adjusted, and it cannot adapt to the height change requirements of the trolley construction.

[0018] First, the bottom of the suspended steel structure 1 is connected to the top of the base steel structure 2 through the load-bearing cable 41. All the weight of the suspended steel structure 1 is transferred to the top of the base steel structure 2 through the load-bearing cable 41, and the load-bearing cable 41 also bears the entire weight of the suspended steel structure 1. The two sides of the suspended steel structure 1 are respectively connected to the two sides of the base steel structure 2 through the limiting cables 3. The limiting cables 3 on both sides do not bear the weight of the suspended steel structure 1, but are only used to limit the excessive rotation of the suspended steel structure 1 around the load-bearing cable 41. That is, although the limiting cables 3 cannot completely prevent the rotation and shaking of the suspended steel structure 1, they can effectively prevent the suspended steel structure 1 from producing excessive deflection. Such a structure has a certain ability to absorb vibration and impact. At this point, the load-bearing cable 41 and the limiting cable 3 cooperate to realize the connection of the structure formed by the T-shaped suspended steel structure 1 and the U-shaped base steel structure 2, and achieve a certain degree of stability of the structure.

[0019] As the core design for achieving height adjustment of the suspended steel structure 1, three groups of pulley blocks 4 are designed. The top of the load-bearing cable 41 is wound around the pulley block 4 of the first group, and the bottom of the limiting cables 3 on both sides of the suspended steel structure 1 are respectively wound around the pulley blocks 4 of the second group and the pulley blocks 4 of the third group, and the pulley blocks 4 are connected to the motor. During the rotation of the pulley block 4, the cable can be wound around it, thereby shortening or extending the length of the cable, thereby achieving adjustment. The pulley block 4 of the first group has the opposite function to the pulley blocks 4 of the second group and the pulley blocks 4 of the third group, that is, when the pulley block 4 of the first group rotates and shortens the length of the load-bearing cable 41, the pulley blocks 4 of the second group and the pulley blocks 4 of the third group rotate and extend the length of the limiting cables 3 on both sides of the suspended steel structure 1, and the suspended steel structure 1 moves upward, thereby raising the height of the trolley. When the first group of pulley blocks 4 rotate and extend the length of the load-bearing cables 41, the second group of pulley blocks 4 and the third group of pulley blocks 4 rotate and shorten the length of the limit cables 3 on both sides of the suspended steel structure 1, and the suspended steel structure 1 moves downward, thereby reducing the height of the trolley. If multiple height adjustment structures for the construction of the corridor trolley are arranged linearly along the movement direction of the trolley, the height adjustment structure for the construction of the corridor trolley at the bottom of the top template longitudinal and transverse support rods 8 can be adjusted by the above-mentioned height adjustment to have a height difference in the linear arrangement direction, so that the top template longitudinal and transverse support rods 8 have the required slope 81 to meet the construction needs of the trolley.

[0020] In actual design, it is preferred to add an operation control system, which is connected to the motor, so that the motor can accurately control the rotation of each pulley group 4. Figure 2 As shown, the motor and the operation control system 7 can be integrated.

[0021] As a preferred embodiment of setting one end of the limiting cable 3 on both sides of the suspended steel structure 1, a lock buckle 11 can be selected to be respectively provided on both sides of the suspended steel structure 1, and one end of the limiting cable 3 is connected to the suspended steel structure 1 through the lock buckle 11, and the lock buckle 11 and the suspended steel structure 1 are detachably connected. Preferably, the lock buckle 11 is provided on both sides of the suspended steel structure 1 through fastening screws. In actual use, in order to realize the movement of the bottom of the base steel structure 2, a universal wheel 5 can be selected to be provided at the bottom of the base steel structure 2, and both ends of the rotating shaft of the universal wheel 5 are provided at the bottom of the base steel structure 2. Of course, in order to realize the locking of the universal wheel 5, a locking device 6 can be additionally provided, and the locking device 6 is fixedly provided on the base steel structure 2. Generally, the locking device 6 is provided close to the universal wheel 5.

[0022] During actual construction, the following steps can be referred to: 1. Construction of the concrete bottom plate and U-shaped guide wall of the pipe gallery: First, excavate the foundation pit, and then carry out the construction of the cushion layer, the tying of the steel bars, the installation of the template of the U-shaped guide wall, and the pouring and curing of concrete according to the design. The template for the guide wall construction is an integral template, which is divided into an inner template, an outer template, the screw rods connecting the inner and outer templates, and the middle support rod. 2. Installation of the side wall template and steel bars: Before the template trolley enters, the side wall steel bar tying and the installation of the side wall template are completed. The template for the side wall construction is an integral template, which is divided into an inner template, an outer template, the screw rods connecting the inner and outer templates, and the outer support rods. 3. The trolley is in place: After the suspended steel structure 1, the base steel structure 2, the load-bearing cable 41, the limit cable 3, the universal wheel 5, and the locking device 6 are assembled, they are placed in the designated position. After reaching the designated position, the plane position of the trolley is fixed by the locking device 6 of the universal wheel 5. The top template longitudinal and transverse support rods 8 are installed on the top of the suspended steel structure 1, and finally the top template is installed. 4. Trolley adjustment: According to the design and construction requirements, the length of the load-bearing cable 41 and the limit cable 3 are adjusted through the motor and the operation control system 7 to achieve the template elevation of the vertical and horizontal support rods 8 of the top template above the suspended steel structure 1 to be consistent with the design elevation. Finally, the vertical and horizontal support rods 8 of the top template are fixed to the side wall template through the fixed connection device. 5. Installation of steel bars and embedded parts: After the template trolley is adjusted in place, the top plate steel bars are tied and embedded parts are installed. 6. Concrete pouring: After the steel bars, templates, water stops and other embedded parts are installed and accepted, the concrete pouring operation is carried out. 7. Demolding: 4 hours after the concrete pouring is completed, the top plate should be sprinkled with water and covered with film for maintenance. 24 hours after the concrete pouring is completed, the side formwork can be removed. Remove the integral formwork of the side wall, keep the fixed connection device on the top template, and when the top template meets the removal requirements, reduce the length of the cable through the operation control system, the trolley descends, and the top formwork and fixed connection device are removed. 8. Trolley movement: There are two ways to move the trolley: ① After the top concrete strength reaches the design strength, the trolley and the top formwork move as a whole; ② After the top concrete strength reaches 80%, a temporary vertical support is set up inside the corridor, the trolley is separated from the top formwork, and the trolley moves forward first. After reaching the next section, the above steps 1-7 are repeated until all construction is completed. Compared with traditional cast-in-place construction, this construction method reduces the cycle time, speeds up the progress while ensuring safety, and the process is stable. The formwork is not subjected to impact loads, which greatly reduces the manpower required for supporting and removing the formwork during construction, reduces labor intensity, shortens the construction period, saves labor and machinery costs, and thus saves costs.

Claims

1. A height adjustment structure for pipe gallery trolley construction, comprising a T-shaped suspended steel structure (1) and a U-shaped base steel structure (2), wherein the bottom of the suspended steel structure (1) is connected to the top of the base steel structure (2) via a load-bearing cable (41), and both sides of the suspended steel structure (1) are connected to both sides of the base steel structure (2) via limiting cables (3), characterized in that: The invention comprises at least three pulley blocks (4), wherein the top of the load-bearing cable (41) is wound around the pulley block (4) of the first group, and the bottoms of the limiting cables (3) on both sides of the suspended steel structure (1) are respectively wound around the pulley blocks (4) of the second group and the pulley blocks (4) of the third group, and the pulley blocks (4) are all connected to a motor; when the suspended steel structure (1) needs to move upward, the pulley block (4) of the first group rotates and shortens the length of the load-bearing cable (41), and the pulley blocks (4) of the second group and the pulley blocks (4) of the third group rotate and lengthen the length of the limiting cables (3) on both sides of the suspended steel structure (1); when the suspended steel structure (1) needs to move downward, the pulley block (4) of the first group rotates and lengthens the length of the load-bearing cable (41), and the pulley blocks (4) of the second group and the pulley blocks (4) of the third group rotate and shorten the length of the limiting cables (3) on both sides of the suspended steel structure (1).

2. The height adjustment structure for pipe gallery trolley construction according to claim 1, characterized in that: An operation control system is included, and the operation control system is connected to the motor.

3. The height adjustment structure for pipe gallery trolley construction according to claim 1, characterized in that: Lock buckles (11) are respectively provided on both sides of the suspended steel structure (1); one end of the position-limiting cable (3) is connected to the suspended steel structure (1) via the lock buckle (11); and the lock buckle (11) and the suspended steel structure (1) are detachably connected.

4. The height adjustment structure for pipe gallery trolley construction according to claim 3, characterized in that: The lock buckles (11) are arranged on both sides of the suspended steel structure (1) by means of fastening screws.

5. The height adjustment structure for pipe gallery trolley construction according to any one of claims 1 to 4, characterized in that: A universal wheel (5) is arranged at the bottom of the base steel structure (2), and both ends of the rotating shaft of the universal wheel (5) are arranged at the bottom of the base steel structure (2).

6. The height adjustment structure for pipe gallery trolley construction according to claim 5, characterized in that: It comprises a locking device (6) for locking the universal wheel (5), wherein the locking device (6) is fixedly arranged on the base steel structure (2).

7. The height adjustment structure for pipe gallery trolley construction according to claim 5, characterized in that: The locking device (6) is arranged closely to the universal wheel (5).

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